http://travel.usatoday.com/flights/post/2011/05/american-airlines-md-80-757-oneworld/171090/1 "Certainly unsatisfactory." That's how American Airlines' CFO Bella Goren described her airline's financial performance for 2010, even though the loss of $389 million dollars represented a billion dollar improvement over the airline's 2009 financial results. Goren spoke earlier today at an investors conference in Boston following the airline's annual shareholders meeting Wednesday in Los Angeles. Goren blamed the poor financial results in 2010 on increased costs, highlighted by a fuel bill that was $850 million higher than 2009. During the first quarter of 2011, Goren said the airline's fuel costs were 24% higher than the previous year.